Home / 21,067,287.50-29,072,856.78-11,409,495.50

Finding the Fourth Proportional to 21,067,287.50, 29,072,856.78 and 11,409,495.50

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Solution

The fourth proportional to 21,067,287.50, 29,072,856.78 and 11,409,495.50 is: 15,745,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067,287.50 : 29,072,856.78 = 11,409,495.50 : x
  2. Step 2: Convert to fraction form
    21,067,287.50/29,072,856.78 = 11,409,495.50/x
  3. Step 3: Cross multiply
    21,067,287.50x = 29,072,856.78 × 11,409,495.50
  4. Step 4: Simplify right side
    21,067,287.50x = 331,706,628,603,554.50
  5. Step 5: Solve for x
    x = 331,706,628,603,554.50/21,067,287.50
  6. Step 6: Final answer
    x = 15,745,103.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.